19760940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{353}}^1$

素因数の和:679

約数の個数: 72

約数和(自身を含む): 60304608

約数和(自身を除く): 40543668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 353, 622, 706, 933, 1059, 1244, 1412, 1555, 1765, 1866, 2118, 2799, 3110, 3177, 3530, 3732, 4236, 4665, 5295, 5598, 6220, 6354, 7060, 9330, 10590, 11196, 12708, 13995, 15885, 18660, 21180, 27990, 31770, 55980, 63540, 109783, 219566, 329349, 439132, 548915, 658698, 988047, 1097830, 1317396, 1646745, 1976094, 2195660, 3293490, 3952188, 4940235, 6586980, 9880470, 19760940]

約数ペア:

[(1, 19760940), (2, 9880470), (3, 6586980), (4, 4940235), (5, 3952188), (6, 3293490), (9, 2195660), (10, 1976094), (12, 1646745), (15, 1317396), (18, 1097830), (20, 988047), (30, 658698), (36, 548915), (45, 439132), (60, 329349), (90, 219566), (180, 109783), (311, 63540), (353, 55980), (622, 31770), (706, 27990), (933, 21180), (1059, 18660), (1244, 15885), (1412, 13995), (1555, 12708), (1765, 11196), (1866, 10590), (2118, 9330), (2799, 7060), (3110, 6354), (3177, 6220), (3530, 5598), (3732, 5295), (4236, 4665)]